 What about a cell phone battery? It is not a cell phone battery, no. Not technology-based of any type, so nothing to do with cell phones, computers. The average one of these will last five days. What do you think it might be? 907-283-5811. Good morning, KSRM. A fair. It is not a fair, no. Think about something that you yourself, all of us, use at least once a day.